Brownlee
Hydro power plant in Washington County, Idaho. 675 MW of nameplate capacity across 5 generators, operated by Idaho Power Co.
Also known as Brownlee powerhouse · EIA plant 811
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 675 MWNameplate
- Generators
- 5 operatingEIA-860M, August 2026
- Operating since
- August 1958First generator online
- Operator
- Idaho Power CoEIA operator ID 9191
- Grid
- IPCOBalancing authority IPCO
- Price nodes
- 5 CAISO nodesResource nodes with prices
- Location
- Washington County, ID44.8367, −116.8975
- EIA plant ID
- 811EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Brownlee produces
Free · EIA-923Net generation, 2025
2.26 TWh
2,255,563 MWh, final
Capacity factor, 2025
38.1%
2024: 37.3%
January to July 2026
Not reported
Provisional. 0 of 7 months reported
Range, 2015 to 2025
1.5–2.5
TWh a year. Low 2021, high 2019
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | 2,508,389 | Not reported | 12 of 12 |
| 2001 | 1,633,335 | Not reported | 12 of 12 |
| 2002 | 1,838,566 | Not reported | 12 of 12 |
| 2003 | 1,943,286 | Not reported | 12 of 12 |
| 2004 | 1,881,536 | Not reported | 12 of 12 |
| 2005 | 1,956,763 | Not reported | 12 of 12 |
| 2006 | 2,925,766 | Not reported | 12 of 12 |
| 2007 | 1,827,060 | Not reported | 12 of 12 |
| 2008 | 2,118,621 | Not reported | 12 of 12 |
| 2009 | 2,406,827 | Not reported | 12 of 12 |
| 2010 | 2,245,004 | 43.8% | 12 of 12 |
| 2011 | 2,923,918 | 57.0% | 12 of 12 |
| 2012 | 2,299,606 | 44.7% | 12 of 12 |
| 2013 | 1,675,425 | 32.7% | 12 of 12 |
| 2014 | 1,917,445 | 37.4% | 12 of 12 |
| 2015 | 1,718,844 | 33.5% | 12 of 12 |
| 2016 | 2,013,316 | 39.2% | 12 of 12 |
| 2017 | 2,394,269 | 46.7% | 12 of 12 |
| 2018 | 2,418,886 | Not reported | 12 of 12 |
| 2019 | 2,538,737 | 42.9% | 12 of 12 |
| 2020 | 2,065,021 | 34.8% | 12 of 12 |
| 2021 | 1,543,109 | 26.1% | 12 of 12 |
| 2022 | 1,578,937 | 26.7% | 12 of 12 |
| 2023 | 2,087,723 | 35.3% | 12 of 12 |
| 2024 | 2,209,109 | 37.3% | 12 of 12 |
| 2025 | 2,255,563 | 38.1% | 12 of 12 |
| 2026 (provisional, partial year) | Not reported | Not reported | 0 of 7 |
* 2026 covers January to July and is provisional. Capacity factor is net generation divided by nameplate capacity times the hours of each reported month.
Power prices and basis
Free account · CAISOEmissions
Free · EPA CAMPDNo EPA emissions units are linked to this plant.
Water use
Free · EIA-923 cooling, USGSNo EIA cooling-water record for this plant in 2024. Plants without steam cooling, such as wind, solar and batteries, do not report cooling water.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| 1 | Conventional Hydroelectric | 112.5 | January 1959 |
| 2 | Conventional Hydroelectric | 112.5 | December 1958 |
| 3 | Conventional Hydroelectric | 112.5 | October 1958 |
| 4 | Conventional Hydroelectric | 112.5 | August 1958 |
| 5 | Conventional Hydroelectric | 225.0 | March 1980 |
Ownership and offtake
ProOwnership and offtake are part of Pro
Owners and their shares, parent companies, and power purchase agreements with their buyers. EIA-860M lists Idaho Power Co as the operator, which is not always the owner.
Modeled data
ProPro adds modeled values for this plant. Everything above stays free.
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Power plants near Brownlee
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Questions about Brownlee
How much power does Brownlee produce?
Brownlee reported 2,255,563 MWh (2.26 TWh) of net generation in 2025, a 38.1% capacity factor on 675 MW of nameplate capacity.
Where is Brownlee?
Brownlee is in Washington County, Idaho, at 44.8367, −116.8975. It is in the Idaho Power Company balancing area (IPCO).
Who operates Brownlee?
EIA-860M for August 2026 lists Idaho Power Co as the operator (EIA operator ID 9191). The operator is not always the owner.
When did Brownlee start operating?
Its first generator began operating in August 1958, according to EIA-860M.
Does InfraMap have power prices for Brownlee?
Yes. InfraMap has CAISO day-ahead and real-time prices at 5 price nodes linked to Brownlee, with the hub price and node-to-hub basis. Prices are free with an InfraMap account; pricing node names are part of InfraMap Pro.
Sources
- EIA-860 2025 (final) and EIA-860M August 2026: plant, generators, capacity, operator and location
- EIA-923 monthly net generation, 2000 to July 2026 (2026 provisional)
- CAISO day-ahead and real-time prices; node and hub assignments as of 2026-10-05
- Plant names from OpenStreetMap, © OpenStreetMap contributors (ODbL)
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page